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ASoC: Add a per component dai list

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Now that every DAI has a component we can track the DAIs on a per component
basis. This simplifies the DAI lookup when we are only interested in DAIs of a
specific component and also makes it possible to have multiple components with
the same parent device and also register DAIs.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Lars-Peter Clausen 2014-03-09 17:41:47 +01:00 committed by Mark Brown
parent 6cc240f39d
commit 1438c2f60b
2 changed files with 36 additions and 42 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/sound/soc.h
View file

@ -671,6 +671,8 @@ struct snd_soc_component {
int num_dai;
const struct snd_soc_component_driver *driver;
struct list_head dai_list;
};
/* SoC Audio Codec device */

76
sound/soc/soc-core.c
View file

@ -56,7 +56,6 @@ EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
#endif
static DEFINE_MUTEX(client_mutex);
static LIST_HEAD(dai_list);
static LIST_HEAD(platform_list);
static LIST_HEAD(codec_list);
static LIST_HEAD(component_list);
@ -370,18 +369,22 @@ static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
{
char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
ssize_t len, ret = 0;
struct snd_soc_component *component;
struct snd_soc_dai *dai;
if (!buf)
return -ENOMEM;
list_for_each_entry(dai, &dai_list, list) {
len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name);
if (len >= 0)
ret += len;
if (ret > PAGE_SIZE) {
ret = PAGE_SIZE;
break;
list_for_each_entry(component, &component_list, list) {
list_for_each_entry(dai, &component->dai_list, list) {
len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
dai->name);
if (len >= 0)
ret += len;
if (ret > PAGE_SIZE) {
ret = PAGE_SIZE;
break;
}
}
}
@ -855,6 +858,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
{
struct snd_soc_dai_link *dai_link = &card->dai_link[num];
struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
struct snd_soc_component *component;
struct snd_soc_codec *codec;
struct snd_soc_platform *platform;
struct snd_soc_dai *codec_dai, *cpu_dai;
@ -863,18 +867,20 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
/* Find CPU DAI from registered DAIs*/
list_for_each_entry(cpu_dai, &dai_list, list) {
list_for_each_entry(component, &component_list, list) {
if (dai_link->cpu_of_node &&
(cpu_dai->dev->of_node != dai_link->cpu_of_node))
component->dev->of_node != dai_link->cpu_of_node)
continue;
if (dai_link->cpu_name &&
strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name))
continue;
if (dai_link->cpu_dai_name &&
strcmp(cpu_dai->name, dai_link->cpu_dai_name))
strcmp(dev_name(component->dev), dai_link->cpu_name))
continue;
list_for_each_entry(cpu_dai, &component->dai_list, list) {
if (dai_link->cpu_dai_name &&
strcmp(cpu_dai->name, dai_link->cpu_dai_name))
continue;
rtd->cpu_dai = cpu_dai;
rtd->cpu_dai = cpu_dai;
}
}
if (!rtd->cpu_dai) {
@ -899,12 +905,10 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num)
* CODEC found, so find CODEC DAI from registered DAIs from
* this CODEC
*/
list_for_each_entry(codec_dai, &dai_list, list) {
if (codec->dev == codec_dai->dev &&
!strcmp(codec_dai->name,
dai_link->codec_dai_name)) {
list_for_each_entry(codec_dai, &codec->component.dai_list, list) {
if (!strcmp(codec_dai->name, dai_link->codec_dai_name)) {
rtd->codec_dai = codec_dai;
break;
}
}
@ -1128,12 +1132,8 @@ static int soc_probe_codec(struct snd_soc_card *card,
driver->num_dapm_widgets);
/* Create DAPM widgets for each DAI stream */
list_for_each_entry(dai, &dai_list, list) {
if (dai->dev != codec->dev)
continue;
list_for_each_entry(dai, &codec->component.dai_list, list)
snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
}
codec->dapm.idle_bias_off = driver->idle_bias_off;
@ -1180,6 +1180,7 @@ static int soc_probe_platform(struct snd_soc_card *card,
{
int ret = 0;
const struct snd_soc_platform_driver *driver = platform->driver;
struct snd_soc_component *component;
struct snd_soc_dai *dai;
platform->card = card;
@ -1195,11 +1196,11 @@ static int soc_probe_platform(struct snd_soc_card *card,
driver->dapm_widgets, driver->num_dapm_widgets);
/* Create DAPM widgets for each DAI stream */
list_for_each_entry(dai, &dai_list, list) {
if (dai->dev != platform->dev)
list_for_each_entry(component, &component_list, list) {
if (component->dev != platform->dev)
continue;
snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
list_for_each_entry(dai, &component->dai_list, list)
snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
}
platform->dapm.idle_bias_off = 1;
@ -3912,21 +3913,14 @@ static inline char *fmt_multiple_name(struct device *dev,
*/
static void snd_soc_unregister_dais(struct snd_soc_component *component)
{
struct snd_soc_dai *dai, *_dai;
mutex_lock(&client_mutex);
list_for_each_entry_safe(dai, _dai, &dai_list, list) {
if (dai->dev != component->dev)
continue;
list_del(&dai->list);
struct snd_soc_dai *dai;
list_for_each_entry(dai, &component->dai_list, list) {
dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n",
dai->name);
kfree(dai->name);
kfree(dai);
}
mutex_unlock(&client_mutex);
}
/**
@ -3990,13 +3984,10 @@ static int snd_soc_register_dais(struct snd_soc_component *component,
if (!dai->driver->ops)
dai->driver->ops = &null_dai_ops;
if (!dai->codec)
dai->dapm.idle_bias_off = 1;
mutex_lock(&client_mutex);
list_add(&dai->list, &dai_list);
mutex_unlock(&client_mutex);
list_add(&dai->list, &component->dai_list);
dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
}
@ -4040,6 +4031,7 @@ __snd_soc_register_component(struct device *dev,
cmpnt->driver = cmpnt_drv;
cmpnt->dai_drv = dai_drv;
cmpnt->num_dai = num_dai;
INIT_LIST_HEAD(&cmpnt->dai_list);
ret = snd_soc_register_dais(cmpnt, codec, dai_drv, num_dai,
allow_single_dai);